Other mistake: Jill's shoulder seems to be perfectly fine when fighting with Sydney, even though she stabbed her shoulder earlier. (01:38:00 - 01:40:00)
Suggested correction: Anger and fear can be more than enough to gather enough strength to fight your way out of a difficult situation regardless of how much of a critical condition you are in.
Other mistake: While Dennis is editing one of the video tapes, there's one on a table labeled "89" even though the film takes place in 1988.
Other mistake: When priest is getting ready to leave the city we see him wrapping his hands in his black shirt but moments later when he pulls up his hood his hands are bare.
Other mistake: The initial view of Barrett's hospital room shows the lower portion of an IV pole. Barely visible IV tubes are hanging down, alongside (or touching) the pole. After briefly shifting to Sonny, there is suddenly a full IV drip bag. The IV tubes are no longer flush with the IV pole - they stick out on both sides and loop at the bottom. Also, the IV drip is not connected to Barrett. (00:50:29)